He follows her, because why not? She's capable enough to handle it if they get into trouble. And who knows what he'll encounter if he tries to set out alone. "A skyscraper?" He repeats, taken aback by the question. "It's a very tall building. At least forty floors. They... have them in London."

There doesn't seem to be anything down the hall, but there does seem to be a window at the end of it. It's dark out, but with any luck he'll be able to see enough of the city to identify it. "Come on," he says, as he catches up and then jogs past her toward it.